I think I can see what you mean. It's not really bad formatting, it's the layout of the dialog itself that leaves very little room for the file list, with the preview on the right and the shortcuts on the left. The dialog can be manually resized to mitigate the problem, but the default layout isn't very user-friendly.
Could you please file an upstream bug for this at https://bugzilla.mozilla.org/enter_bug.cgi#h=dupes|Thunderbird and share the link to it here? Thanks! ** Summary changed: - Attach dialog badly formats long image filenames + [upstream] Attach dialog default layout leaves very little room for file list because of the image preview ** Changed in: thunderbird (Ubuntu) Status: New => Confirmed ** Changed in: thunderbird (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1945742 Title: [upstream] Attach dialog default layout leaves very little room for file list because of the image preview To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1945742/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs